devontemiles4483 devontemiles4483

07-09-2017
Mathematics

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The average of 5 numbers is 20. what is the sum of these same numbers?

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mreijepatmat mreijepatmat

10-09-2017

Average = (A₁+A₂+A₃+A₄+A₅)/5. Since average = 20 (GIVEN), then:

20 = (A₁+A₂+A₃+A₄+A₅)/5

Or (A₁+A₂+A₃+A₄+A₅) = 20x5

(A₁+A₂+A₃+A₄+A₅) = 100

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